Environmentally-friendly conductive cotton fabric as flexible strain sensor based on hot press reduced graphene oxide
| Autor: | Tian Carey, Chaoxia Wang, Yunjie Yin, Jiesheng Ren, Kunlin Chen, Felice Torrisi, Xuan Zhang |
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| Přispěvatelé: | Torrisi, F [0000-0002-6144-2916], Apollo - University of Cambridge Repository |
| Rok vydání: | 2016 |
| Předmět: |
Technology
Materials science Materials Science Oxide Graphite oxide Materials Science Multidisciplinary TEXTILES 02 engineering and technology 010402 general chemistry 01 natural sciences NANOCOMPOSITE 4016 Materials Engineering 09 Engineering law.invention chemistry.chemical_compound Electrical resistance and conductance law parasitic diseases General Materials Science RAMAN-SPECTRA Composite material Nanoscience & Nanotechnology Sheet resistance THERMAL REDUCTION 40 Engineering SUPERCAPACITOR Supercapacitor EXFOLIATION Nanocomposite Science & Technology 02 Physical Sciences ELECTRODE Graphene Chemistry Physical technology industry and agriculture General Chemistry 021001 nanoscience & nanotechnology SHEETS 0104 chemical sciences GRAPHITE OXIDE Chemistry chemistry Electrode Physical Sciences 0210 nano-technology 03 Chemical Sciences FIBERS |
| Popis: | A flexible conductive cotton fabric was demonstrated by formulation and deposition of a graphene oxide (GO) dispersion onto a cotton fabric by vacuum filtration. The deposited GO amount was controlled by the concentration and volume of the GO dispersion. The GO was reduced by a hot press method at 180 °C for 60 min, and no chemical reductant was needed in both the deposition and reduction processes. The carbon-oxygen ratio increased from 1.77 to 3.72 after the hot press reduction. The as-prepared flexible conductive cotton fabric showed a sheet resistance as low as 0.9 kΩ/sq. The sheet resistance of the conductive cotton fabric only increased from ∼0.9 kΩ/sq to ∼1.2 kΩ/sq after 10 washing cycles, exhibiting good washability. The conductive cotton fabric showed viability as a strain sensor even after 400 bending cycles, in which the stable change in the electrical resistance went from ∼3500 kΩ under tensile strain to ∼10 kΩ under compressive strain. This cost-effective and environmentally-friendly method can be easily extended to scalable production of reduced GO based flexible conductive cotton fabrics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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